19976190

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1$

素因数の和:194

約数の個数: 128

約数和(自身を含む): 57480192

約数和(自身を除く): 37504002

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 17, 23, 26, 30, 34, 39, 46, 51, 65, 69, 78, 85, 102, 115, 130, 131, 138, 170, 195, 221, 230, 255, 262, 299, 345, 390, 391, 393, 442, 510, 598, 655, 663, 690, 782, 786, 897, 1105, 1173, 1310, 1326, 1495, 1703, 1794, 1955, 1965, 2210, 2227, 2346, 2990, 3013, 3315, 3406, 3910, 3930, 4454, 4485, 5083, 5109, 5865, 6026, 6630, 6681, 8515, 8970, 9039, 10166, 10218, 11135, 11730, 13362, 15065, 15249, 17030, 18078, 22270, 25415, 25545, 28951, 30130, 30498, 33405, 39169, 45195, 50830, 51090, 51221, 57902, 66810, 76245, 78338, 86853, 90390, 102442, 117507, 144755, 152490, 153663, 173706, 195845, 235014, 256105, 289510, 307326, 391690, 434265, 512210, 587535, 665873, 768315, 868530, 1175070, 1331746, 1536630, 1997619, 3329365, 3995238, 6658730, 9988095, 19976190]

約数ペア:

[(1, 19976190), (2, 9988095), (3, 6658730), (5, 3995238), (6, 3329365), (10, 1997619), (13, 1536630), (15, 1331746), (17, 1175070), (23, 868530), (26, 768315), (30, 665873), (34, 587535), (39, 512210), (46, 434265), (51, 391690), (65, 307326), (69, 289510), (78, 256105), (85, 235014), (102, 195845), (115, 173706), (130, 153663), (131, 152490), (138, 144755), (170, 117507), (195, 102442), (221, 90390), (230, 86853), (255, 78338), (262, 76245), (299, 66810), (345, 57902), (390, 51221), (391, 51090), (393, 50830), (442, 45195), (510, 39169), (598, 33405), (655, 30498), (663, 30130), (690, 28951), (782, 25545), (786, 25415), (897, 22270), (1105, 18078), (1173, 17030), (1310, 15249), (1326, 15065), (1495, 13362), (1703, 11730), (1794, 11135), (1955, 10218), (1965, 10166), (2210, 9039), (2227, 8970), (2346, 8515), (2990, 6681), (3013, 6630), (3315, 6026), (3406, 5865), (3910, 5109), (3930, 5083), (4454, 4485)]