20836702120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{461}}^1\times {\mathrm{5113}}^1$

素因数の和:5615

約数の個数: 128

約数和(自身を含む): 53585310240

約数和(自身を除く): 32748608120

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 65, 68, 85, 104, 130, 136, 170, 221, 260, 340, 442, 461, 520, 680, 884, 922, 1105, 1768, 1844, 2210, 2305, 3688, 4420, 4610, 5113, 5993, 7837, 8840, 9220, 10226, 11986, 15674, 18440, 20452, 23972, 25565, 29965, 31348, 39185, 40904, 47944, 51130, 59930, 62696, 66469, 78370, 86921, 101881, 102260, 119860, 132938, 156740, 173842, 203762, 204520, 239720, 265876, 313480, 332345, 347684, 407524, 434605, 509405, 531752, 664690, 695368, 815048, 869210, 1018810, 1129973, 1329380, 1738420, 2037620, 2259946, 2357093, 2658760, 3476840, 4075240, 4519892, 4714186, 5649865, 9039784, 9428372, 11299730, 11785465, 18856744, 22599460, 23570930, 30642209, 40070581, 45198920, 47141860, 61284418, 80141162, 94283720, 122568836, 153211045, 160282324, 200352905, 245137672, 306422090, 320564648, 400705810, 520917553, 612844180, 801411620, 1041835106, 1225688360, 1602823240, 2083670212, 2604587765, 4167340424, 5209175530, 10418351060, 20836702120]

約数ペア:

[(1, 20836702120), (2, 10418351060), (4, 5209175530), (5, 4167340424), (8, 2604587765), (10, 2083670212), (13, 1602823240), (17, 1225688360), (20, 1041835106), (26, 801411620), (34, 612844180), (40, 520917553), (52, 400705810), (65, 320564648), (68, 306422090), (85, 245137672), (104, 200352905), (130, 160282324), (136, 153211045), (170, 122568836), (221, 94283720), (260, 80141162), (340, 61284418), (442, 47141860), (461, 45198920), (520, 40070581), (680, 30642209), (884, 23570930), (922, 22599460), (1105, 18856744), (1768, 11785465), (1844, 11299730), (2210, 9428372), (2305, 9039784), (3688, 5649865), (4420, 4714186), (4610, 4519892), (5113, 4075240), (5993, 3476840), (7837, 2658760), (8840, 2357093), (9220, 2259946), (10226, 2037620), (11986, 1738420), (15674, 1329380), (18440, 1129973), (20452, 1018810), (23972, 869210), (25565, 815048), (29965, 695368), (31348, 664690), (39185, 531752), (40904, 509405), (47944, 434605), (51130, 407524), (59930, 347684), (62696, 332345), (66469, 313480), (78370, 265876), (86921, 239720), (101881, 204520), (102260, 203762), (119860, 173842), (132938, 156740)]