16480980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:174

約数の個数: 144

約数和(自身を含む): 54163200

約数和(自身を除く): 37682220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 61, 76, 79, 90, 95, 114, 122, 158, 171, 180, 183, 190, 228, 237, 244, 285, 305, 316, 342, 366, 380, 395, 474, 549, 570, 610, 684, 711, 732, 790, 855, 915, 948, 1098, 1140, 1159, 1185, 1220, 1422, 1501, 1580, 1710, 1830, 2196, 2318, 2370, 2745, 2844, 3002, 3420, 3477, 3555, 3660, 4503, 4636, 4740, 4819, 5490, 5795, 6004, 6954, 7110, 7505, 9006, 9638, 10431, 10980, 11590, 13509, 13908, 14220, 14457, 15010, 17385, 18012, 19276, 20862, 22515, 23180, 24095, 27018, 28914, 30020, 34770, 41724, 43371, 45030, 48190, 52155, 54036, 57828, 67545, 69540, 72285, 86742, 90060, 91561, 96380, 104310, 135090, 144570, 173484, 183122, 208620, 216855, 270180, 274683, 289140, 366244, 433710, 457805, 549366, 824049, 867420, 915610, 1098732, 1373415, 1648098, 1831220, 2746830, 3296196, 4120245, 5493660, 8240490, 16480980]

約数ペア:

[(1, 16480980), (2, 8240490), (3, 5493660), (4, 4120245), (5, 3296196), (6, 2746830), (9, 1831220), (10, 1648098), (12, 1373415), (15, 1098732), (18, 915610), (19, 867420), (20, 824049), (30, 549366), (36, 457805), (38, 433710), (45, 366244), (57, 289140), (60, 274683), (61, 270180), (76, 216855), (79, 208620), (90, 183122), (95, 173484), (114, 144570), (122, 135090), (158, 104310), (171, 96380), (180, 91561), (183, 90060), (190, 86742), (228, 72285), (237, 69540), (244, 67545), (285, 57828), (305, 54036), (316, 52155), (342, 48190), (366, 45030), (380, 43371), (395, 41724), (474, 34770), (549, 30020), (570, 28914), (610, 27018), (684, 24095), (711, 23180), (732, 22515), (790, 20862), (855, 19276), (915, 18012), (948, 17385), (1098, 15010), (1140, 14457), (1159, 14220), (1185, 13908), (1220, 13509), (1422, 11590), (1501, 10980), (1580, 10431), (1710, 9638), (1830, 9006), (2196, 7505), (2318, 7110), (2370, 6954), (2745, 6004), (2844, 5795), (3002, 5490), (3420, 4819), (3477, 4740), (3555, 4636), (3660, 4503)]