221209020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{911}}^1$

素因数の和:1016

約数の個数: 144

約数和(自身を含む): 717050880

約数和(自身を除く): 495841860

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 71, 76, 90, 95, 114, 142, 171, 180, 190, 213, 228, 284, 285, 342, 355, 380, 426, 570, 639, 684, 710, 852, 855, 911, 1065, 1140, 1278, 1349, 1420, 1710, 1822, 2130, 2556, 2698, 2733, 3195, 3420, 3644, 4047, 4260, 4555, 5396, 5466, 6390, 6745, 8094, 8199, 9110, 10932, 12141, 12780, 13490, 13665, 16188, 16398, 17309, 18220, 20235, 24282, 26980, 27330, 32796, 34618, 40470, 40995, 48564, 51927, 54660, 60705, 64681, 69236, 80940, 81990, 86545, 103854, 121410, 129362, 155781, 163980, 173090, 194043, 207708, 242820, 258724, 259635, 311562, 323405, 346180, 388086, 519270, 582129, 623124, 646810, 776172, 778905, 970215, 1038540, 1164258, 1228939, 1293620, 1557810, 1940430, 2328516, 2457878, 2910645, 3115620, 3686817, 3880860, 4915756, 5821290, 6144695, 7373634, 11060451, 11642580, 12289390, 14747268, 18434085, 22120902, 24578780, 36868170, 44241804, 55302255, 73736340, 110604510, 221209020]

約数ペア:

[(1, 221209020), (2, 110604510), (3, 73736340), (4, 55302255), (5, 44241804), (6, 36868170), (9, 24578780), (10, 22120902), (12, 18434085), (15, 14747268), (18, 12289390), (19, 11642580), (20, 11060451), (30, 7373634), (36, 6144695), (38, 5821290), (45, 4915756), (57, 3880860), (60, 3686817), (71, 3115620), (76, 2910645), (90, 2457878), (95, 2328516), (114, 1940430), (142, 1557810), (171, 1293620), (180, 1228939), (190, 1164258), (213, 1038540), (228, 970215), (284, 778905), (285, 776172), (342, 646810), (355, 623124), (380, 582129), (426, 519270), (570, 388086), (639, 346180), (684, 323405), (710, 311562), (852, 259635), (855, 258724), (911, 242820), (1065, 207708), (1140, 194043), (1278, 173090), (1349, 163980), (1420, 155781), (1710, 129362), (1822, 121410), (2130, 103854), (2556, 86545), (2698, 81990), (2733, 80940), (3195, 69236), (3420, 64681), (3644, 60705), (4047, 54660), (4260, 51927), (4555, 48564), (5396, 40995), (5466, 40470), (6390, 34618), (6745, 32796), (8094, 27330), (8199, 26980), (9110, 24282), (10932, 20235), (12141, 18220), (12780, 17309), (13490, 16398), (13665, 16188)]