159820020

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{421}}^1$

素因数の和:495

約数の個数: 192

約数和(自身を含む): 538809600

約数和(自身を除く): 378989580

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 27, 30, 36, 37, 38, 45, 54, 57, 60, 74, 76, 90, 95, 108, 111, 114, 135, 148, 171, 180, 185, 190, 222, 228, 270, 285, 333, 342, 370, 380, 421, 444, 513, 540, 555, 570, 666, 684, 703, 740, 842, 855, 999, 1026, 1110, 1140, 1263, 1332, 1406, 1665, 1684, 1710, 1998, 2052, 2105, 2109, 2220, 2526, 2565, 2812, 3330, 3420, 3515, 3789, 3996, 4210, 4218, 4995, 5052, 5130, 6315, 6327, 6660, 7030, 7578, 7999, 8420, 8436, 9990, 10260, 10545, 11367, 12630, 12654, 14060, 15156, 15577, 15998, 18945, 18981, 19980, 21090, 22734, 23997, 25260, 25308, 31154, 31635, 31996, 37890, 37962, 39995, 42180, 45468, 46731, 47994, 56835, 62308, 63270, 71991, 75780, 75924, 77885, 79990, 93462, 94905, 95988, 113670, 119985, 126540, 140193, 143982, 155770, 159980, 186924, 189810, 215973, 227340, 233655, 239970, 280386, 287964, 295963, 311540, 359955, 379620, 420579, 431946, 467310, 479940, 560772, 591926, 700965, 719910, 841158, 863892, 887889, 934620, 1079865, 1183852, 1401930, 1439820, 1479815, 1682316, 1775778, 2102895, 2159730, 2663667, 2803860, 2959630, 3551556, 4205790, 4319460, 4439445, 5327334, 5919260, 7991001, 8411580, 8878890, 10654668, 13318335, 15982002, 17757780, 26636670, 31964004, 39955005, 53273340, 79910010, 159820020]

約数ペア:

[(1, 159820020), (2, 79910010), (3, 53273340), (4, 39955005), (5, 31964004), (6, 26636670), (9, 17757780), (10, 15982002), (12, 13318335), (15, 10654668), (18, 8878890), (19, 8411580), (20, 7991001), (27, 5919260), (30, 5327334), (36, 4439445), (37, 4319460), (38, 4205790), (45, 3551556), (54, 2959630), (57, 2803860), (60, 2663667), (74, 2159730), (76, 2102895), (90, 1775778), (95, 1682316), (108, 1479815), (111, 1439820), (114, 1401930), (135, 1183852), (148, 1079865), (171, 934620), (180, 887889), (185, 863892), (190, 841158), (222, 719910), (228, 700965), (270, 591926), (285, 560772), (333, 479940), (342, 467310), (370, 431946), (380, 420579), (421, 379620), (444, 359955), (513, 311540), (540, 295963), (555, 287964), (570, 280386), (666, 239970), (684, 233655), (703, 227340), (740, 215973), (842, 189810), (855, 186924), (999, 159980), (1026, 155770), (1110, 143982), (1140, 140193), (1263, 126540), (1332, 119985), (1406, 113670), (1665, 95988), (1684, 94905), (1710, 93462), (1998, 79990), (2052, 77885), (2105, 75924), (2109, 75780), (2220, 71991), (2526, 63270), (2565, 62308), (2812, 56835), (3330, 47994), (3420, 46731), (3515, 45468), (3789, 42180), (3996, 39995), (4210, 37962), (4218, 37890), (4995, 31996), (5052, 31635), (5130, 31154), (6315, 25308), (6327, 25260), (6660, 23997), (7030, 22734), (7578, 21090), (7999, 19980), (8420, 18981), (8436, 18945), (9990, 15998), (10260, 15577), (10545, 15156), (11367, 14060), (12630, 12654)]