920318390

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1$

素因数の和:238

約数の個数: 128

約数和(自身を含む): 1912135680

約数和(自身を除く): 991817290

約数列:

[1, 2, 5, 10, 19, 31, 37, 38, 41, 62, 74, 82, 95, 103, 155, 185, 190, 205, 206, 310, 370, 410, 515, 589, 703, 779, 1030, 1147, 1178, 1271, 1406, 1517, 1558, 1957, 2294, 2542, 2945, 3034, 3193, 3515, 3811, 3895, 3914, 4223, 5735, 5890, 6355, 6386, 7030, 7585, 7622, 7790, 8446, 9785, 11470, 12710, 15170, 15965, 19055, 19570, 21115, 21793, 24149, 28823, 31930, 38110, 42230, 43586, 47027, 48298, 57646, 60667, 72409, 80237, 94054, 108965, 118141, 120745, 121334, 130913, 144115, 144818, 156251, 160474, 217930, 235135, 236282, 241490, 261826, 288230, 303335, 312502, 362045, 401185, 470270, 590705, 606670, 654565, 724090, 781255, 802370, 893513, 1181410, 1309130, 1562510, 1787026, 2244679, 2487347, 2968769, 4467565, 4489358, 4843781, 4974694, 5937538, 8935130, 9687562, 11223395, 12436735, 14843845, 22446790, 24218905, 24873470, 29687690, 48437810, 92031839, 184063678, 460159195, 920318390]

約数ペア:

[(1, 920318390), (2, 460159195), (5, 184063678), (10, 92031839), (19, 48437810), (31, 29687690), (37, 24873470), (38, 24218905), (41, 22446790), (62, 14843845), (74, 12436735), (82, 11223395), (95, 9687562), (103, 8935130), (155, 5937538), (185, 4974694), (190, 4843781), (205, 4489358), (206, 4467565), (310, 2968769), (370, 2487347), (410, 2244679), (515, 1787026), (589, 1562510), (703, 1309130), (779, 1181410), (1030, 893513), (1147, 802370), (1178, 781255), (1271, 724090), (1406, 654565), (1517, 606670), (1558, 590705), (1957, 470270), (2294, 401185), (2542, 362045), (2945, 312502), (3034, 303335), (3193, 288230), (3515, 261826), (3811, 241490), (3895, 236282), (3914, 235135), (4223, 217930), (5735, 160474), (5890, 156251), (6355, 144818), (6386, 144115), (7030, 130913), (7585, 121334), (7622, 120745), (7790, 118141), (8446, 108965), (9785, 94054), (11470, 80237), (12710, 72409), (15170, 60667), (15965, 57646), (19055, 48298), (19570, 47027), (21115, 43586), (21793, 42230), (24149, 38110), (28823, 31930)]