81223290

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{223}}^1$

素因数の和:329

約数の個数: 128

約数和(自身を含む): 232243200

約数和(自身を除く): 151019910

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 27, 30, 38, 45, 54, 57, 71, 90, 95, 114, 135, 142, 171, 190, 213, 223, 270, 285, 342, 355, 426, 446, 513, 570, 639, 669, 710, 855, 1026, 1065, 1115, 1278, 1338, 1349, 1710, 1917, 2007, 2130, 2230, 2565, 2698, 3195, 3345, 3834, 4014, 4047, 4237, 5130, 6021, 6390, 6690, 6745, 8094, 8474, 9585, 10035, 12042, 12141, 12711, 13490, 15833, 19170, 20070, 20235, 21185, 24282, 25422, 30105, 31666, 36423, 38133, 40470, 42370, 47499, 60210, 60705, 63555, 72846, 76266, 79165, 94998, 114399, 121410, 127110, 142497, 158330, 182115, 190665, 228798, 237495, 284994, 300827, 364230, 381330, 427491, 474990, 571995, 601654, 712485, 854982, 902481, 1143990, 1424970, 1504135, 1804962, 2137455, 2707443, 3008270, 4274910, 4512405, 5414886, 8122329, 9024810, 13537215, 16244658, 27074430, 40611645, 81223290]

約数ペア:

[(1, 81223290), (2, 40611645), (3, 27074430), (5, 16244658), (6, 13537215), (9, 9024810), (10, 8122329), (15, 5414886), (18, 4512405), (19, 4274910), (27, 3008270), (30, 2707443), (38, 2137455), (45, 1804962), (54, 1504135), (57, 1424970), (71, 1143990), (90, 902481), (95, 854982), (114, 712485), (135, 601654), (142, 571995), (171, 474990), (190, 427491), (213, 381330), (223, 364230), (270, 300827), (285, 284994), (342, 237495), (355, 228798), (426, 190665), (446, 182115), (513, 158330), (570, 142497), (639, 127110), (669, 121410), (710, 114399), (855, 94998), (1026, 79165), (1065, 76266), (1115, 72846), (1278, 63555), (1338, 60705), (1349, 60210), (1710, 47499), (1917, 42370), (2007, 40470), (2130, 38133), (2230, 36423), (2565, 31666), (2698, 30105), (3195, 25422), (3345, 24282), (3834, 21185), (4014, 20235), (4047, 20070), (4237, 19170), (5130, 15833), (6021, 13490), (6390, 12711), (6690, 12141), (6745, 12042), (8094, 10035), (8474, 9585)]