28784430

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{181}}^1$

素因数の和:247

約数の個数: 128

約数和(自身を含む): 83865600

約数和(自身を除く): 55081170

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 27, 30, 31, 38, 45, 54, 57, 62, 90, 93, 95, 114, 135, 155, 171, 181, 186, 190, 270, 279, 285, 310, 342, 362, 465, 513, 543, 558, 570, 589, 837, 855, 905, 930, 1026, 1086, 1178, 1395, 1629, 1674, 1710, 1767, 1810, 2565, 2715, 2790, 2945, 3258, 3439, 3534, 4185, 4887, 5130, 5301, 5430, 5611, 5890, 6878, 8145, 8370, 8835, 9774, 10317, 10602, 11222, 15903, 16290, 16833, 17195, 17670, 20634, 24435, 26505, 28055, 30951, 31806, 33666, 34390, 48870, 50499, 51585, 53010, 56110, 61902, 79515, 84165, 92853, 100998, 103170, 106609, 151497, 154755, 159030, 168330, 185706, 213218, 252495, 302994, 309510, 319827, 464265, 504990, 533045, 639654, 757485, 928530, 959481, 1066090, 1514970, 1599135, 1918962, 2878443, 3198270, 4797405, 5756886, 9594810, 14392215, 28784430]

約数ペア:

[(1, 28784430), (2, 14392215), (3, 9594810), (5, 5756886), (6, 4797405), (9, 3198270), (10, 2878443), (15, 1918962), (18, 1599135), (19, 1514970), (27, 1066090), (30, 959481), (31, 928530), (38, 757485), (45, 639654), (54, 533045), (57, 504990), (62, 464265), (90, 319827), (93, 309510), (95, 302994), (114, 252495), (135, 213218), (155, 185706), (171, 168330), (181, 159030), (186, 154755), (190, 151497), (270, 106609), (279, 103170), (285, 100998), (310, 92853), (342, 84165), (362, 79515), (465, 61902), (513, 56110), (543, 53010), (558, 51585), (570, 50499), (589, 48870), (837, 34390), (855, 33666), (905, 31806), (930, 30951), (1026, 28055), (1086, 26505), (1178, 24435), (1395, 20634), (1629, 17670), (1674, 17195), (1710, 16833), (1767, 16290), (1810, 15903), (2565, 11222), (2715, 10602), (2790, 10317), (2945, 9774), (3258, 8835), (3439, 8370), (3534, 8145), (4185, 6878), (4887, 5890), (5130, 5611), (5301, 5430)]